.grandpa   
 {
  width:500px;
  background:white;
  text-align: left;
  display: inline-block;
}
.parent{
    font-size: 11px;
position: absolute;
top: 50%;
left: 50%;
-ms-transform: translate(-50%,-50%);
-webkit-transform : translate(-50%,-50%);
transform : translate(-50%,-50%);
width: 500px;
}